Littelfuse Automotive Sensor Products offer a wide range of sensors for use in monitoring various vehicular functions in the areas of passenger safety, comfort and convenience plus vehicle powertrain, chassis and emission applications.

SE-325EN - SE-325 Series

The SE-325 Neutral-Grounding-Resistor Monitor is used on
resistance-grounded systems up to 25 kV to monitor the
integrity of the neutral-to-ground path and to detect ground
faults. It measures current and voltage in a transformer or
generator neutral-to-ground connection and continuity of the
neutral-grounding resistor (NGR). The SE-325 coordinates these
three measurements to detect a loose connection, corrosion,
ground fault, or NGR failure, and provides one alarm or trip
output contact.

A high-resistance-grounded system uses a neutralgrounding resistor (NGR) with a low let-through current to limit ground-fault current. This is an improvement over low-resistance- or solidly grounded systems because, in those systems, a ground-fault flash hazard exists and a ground fault can result in substantial point-of-fault damage.

These cookies are used to collect information about how you interact with our website and allow us to remember you.
We use this information to improve and customize your browsing experience and for analytics and metrics about our
visitors on this website and other media. To find out more about the cookies we use, see our Privacy Policy.

EssentialPerformance and analytical technologiesFunctionalityTargeting or advertising

If you decline, your information won't be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked.